My sister was panic'ing about this yesterday, I told her it was the dumbest idea I've heard.

And I've seen Logan Paul's Zoocoin. Hell I'd double down and say I'd put my money in zoocoin before worldcoin.

In a world where Bitcoin and Etherium already exist, what does a coin like "Worldcoin" bring to the stage?

More complexity.

Of course there are problems with modern crypto, in terms of security, but a system that can be hacked more easily then the blockchain is for sure not the answer.

And a project that is LESS CONVENIENT then modern crypto, with less security too. Get the hell out of here.